The Caulking Lead, cataloged under National Stock Number 5330-00-171-6545, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Belmont Metals, Inc. Dba Belmont Metals Div Belmont Metals. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-171-6545 |
| Primary Part Number | 5008 |
| Item Name | Caulking Lead |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Belmont Metals, Inc. Dba Belmont Metals Div Belmont Metals |
| Status | ACTIVE |
| Supplementary Features | MINIMUM OF 99.7 PERCENT LEAD, MAXIMUM OF 0.02 PERCENT ANTIMONY AND ARSENIC; ROPE FORM; WEIGHTS 0.3 TO 0.7 POUNDS PER LINEAR FOOT; LEAD STRANDS DIAMETER OF 0.005 TO 0.157 INCH LBS |
| Material | LEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5008 PRIMARY | Belmont Metals, Inc. Dba Belmont Metals Div Belmont Metals (USA) |
| Reference | Meaning |
|---|---|
| QQ-C-40 | 5/9 Secondary reference U.S. Government activity |
| A-A-1189 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 5330-00-171-6545 is a Caulking Lead, manufactured by Belmont Metals, Inc. Dba Belmont Metals Div Belmont Metals, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-171-6545 has 1 manufacturer part number on file: 5008 (Belmont Metals, Inc. Dba Belmont Metals Div Belmont Metals).
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-185-0030, 9650-00-250-8035, 9650-00-264-5050. Verify interchangeability with system specifications before substitution.
Key specifications for 5008: Supplementary Features: MINIMUM OF 99.7 PERCENT LEAD, MAXIMUM OF 0.02 PERCENT ANTIMONY AND ARSENIC; ROPE FORM; WEIGHTS 0.3 TO 0.7 POUNDS PER LINEAR FOOT; LEAD STRANDS DIAMETER OF 0.005 TO 0.157 INCH LBS; Material: LEAD. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.